JSON Formatter
Format and validate JSON locally in your browser. No upload, no signup.
JSON workspace
Paste JSON, choose indentation, then format, minify, or sort the result.
Result
Result ready to copy
JSON parses locally. Format, minify, sort, or copy the current result.
Output
object type1 keys1 depth1 objects0 arrays1 values
Files are processed in your browser. No data is uploaded.
Questions
Can this validate JSON?
Yes. Invalid JSON returns a clear local error without sending the content anywhere.
Can this sort JSON keys?
Yes. Sort keys formats JSON with object keys ordered recursively while preserving array order.
Does Utilumo upload my input?
No. This tool is designed for local browser processing and does not send your input to a server.
Do I need an account?
No. Utilumo tools are built to work without accounts or sign-in.